Hose coupling



June 14, 1949.

J. A. MULLER HOSE COUPLING Filed Feb. 4, 1946 bum provided in the ring portion or enlargement I: at equally spaced intervals circumferentially thereof, and the number of such openings l3 provided in the member I2 is equal to the number of wires or cables or 8 comprising in the inner or outer spirally wound layers thereof that are embedded in the layer 4 of the hose body l.

The openings l3 provided in the sleeve portion or enlargement I! have a radial depth substantially greater than twice the diameter of the wires or cables 5 and B in order that the end portions of corresponding wires or cables 5 and 6 of both the inner and outer spirally wound layers thereof may be inserted in each of said openings i3. Thus, as shown in Fig. 2 of the drawing, in each opening I: there is inserted the end portion of one cable 5 in the inner spirally wound layer and also the end portion of the corresponding cable 6 of the outer spirally wound layer. Each of the openings I3 is counterbored and tapped, as indicated at It in Fig. 3, to receive a screw member which is threaded therein and tightened to securely clamp and anchor the end portions of the cables 5 and 8 against displacement from the openings i3 in the ring or enlargement l2, Each of the openings l3 preferably is provided with at least two such screw members l5 and, as shown in Fig. 2 of the drawing, the positioning of the screw members I5 may be staggered as bea tween adjacent openings ii in cases where the latter are closely spaced.

When the end portions of the cables 5 and G of the inner and outer spirally wound layers are anchored in the several openings 13 of the sleeve ring or enlargement I! in the manner described. rubber in proper quantity is applied over the layers of cables 5 and 6 and the sleeve 1 to form the outer rubber layer 4 of the hose body, and this rubber is then vulcanized so that the spirally wound layers of wires or cables 5 and 6, the ring or enlargement I! of the sleeve in which the cable ends are anchored, are embedded within the vulcanized outer rubber layer 4, for example, in the manner shown in Fig. 1 of the drawing.

The outer end of the connector sleeve I provides an annular face IS in which there is formed an annular recess or groove ll of arcuate crosssection, and the outer end of the inner layer 2 of the hose body I is formed and molded around and over the end face It of the connector sleeve 1 to provide a flange or ring M which has its base keyed in the groove H as shown. As shown in Fig. 4 of the drawing, the external diameter of the flange or ring I8 is slightly less than the diameter of the inner wall surface 19 of the surrounding cup portion H of the coupling member 8 and formed in the end face of the flange or ring of the hose body is an annular recess or groove 20 of v-shape in cross-section. The inner surface 2| of the flange or ring iii of the hose body i is angularly disposed and slopes inwardly to intersect a radially disposed annular face or seat 22 which surrounds the bore through said hose body.

The coupling member 8 is provided with an annular groove or recess 23 substantially conforming to the cross-sectional configuration of the hose flange or ring i8 and the inner wall 24 of this recess 23 slopes outwardly substantially at the same angle as the surface 2| of the hose flange or ring i8. This angular surface 24 of the coupling terminates at its endwise edge in a radially disposed annular face 25 which surrounds the bore through the coupling 8.

The construction and arrangement of the hose 4 flange or ring it and the recess or groove 23 of the coupling member 8 is such that as the latter is threaded upon the connector sleeve 1 and tightened, the radially disposed annular face 25 of the coupling will seat against the corresponding annular face 22 of the hose body I, and the angular surface 24 of the coupling 8 engages against the angular surface 2i of the hose flange or ring l8 at the inner side of the groove or recess 20 to thereby compress the flange or ring I! and force the periphery thereof outwardly and tightly against the adjacent inner surface l9 of the portion H of the coupling 8, from the solid line position shown in Fig. 4 to the dotted line position indicated therein, to provide a fluid-tight seal therebetween and effectively prevent any leakage between the hose flange or ring IB and the inner wall surface IQ of the coupling 8. The coupling member 8 may be secured in its coupled relation with respect to the connector sleeve 1 by means of one or more set screws 25 threaded inwardly of the coupling cup portion II and engaging suitably formed recesses 21 in the external surface of the said sleeve 1.

A hose structure constructed as herein shown and described provides a hose of the character set forth wherein the reinforcing cables or wires embedded in the hose body may be anchored to a connector means in a manner to insure the precise placement of the wires or cables with respect to one another and the elimination of voids therebetween through which the underlying hose might rupture. The hose construction of the present invention also provides an effective anchor for the reinforcing wires or cables which will withstand stresses both in excess of the strength of such wires or cables and in excess of the stresses capable of being withstood by the hose body per se. In addition, the hose structure of the present invention provides an efficient fluidtight seal between the hose connector and coupling member that effectively prevents the internal pressure within the hose from leaking through the seal or through the body of the hose.

While a particular embodiment of the present invention has been illustrated and described herein, it is not intended to limit the invention to such disclosure and changes and modifications may be made therein and thereto within the scope of the claims.

I claim:

1. In a hose structure, a connector sleeve having an annular end face and a plurality of axially extending radial openings in the external surface of the sleeve at equally spaced intervals circumferentially thereof, a hose including inner and outer piles connected at one end to said connector sleeve with the inner ply of said hose extending through the sleeve and having an annular end flange portion overlying the annular end face of said sleeve and the outer ply of said hose overlying the exterior of said sleeve, inner and outer spirally wound layers of wires embedded in said outer ply of the hose and extending from end to end thereof with the end portions of a corresponding wire of each layer disposed in each of said axially extending openings on the connector sleeve, means to anchor said end portions ofTlTe wires in said openings, a coupling member receiving said sleeve and having an angularly disposed surface engaging interiorly of the hose end flange to force the same outwardly against the surrounding coupling member and provide a fluidtight seal.

2. In a. hose structure, a connector sleeve havi said end portions of the ing an annular end face and a plurality of axially extending radial openings in the external surface of the sleeve at equally spaced intervals circumferentially thereof, a hose including inner and outer plies connected at one end to said connector sleeve with the inner ply of said hose extendin through the sleeve and having an annular end flange portion overlying the annular end face of said sleeve and the outer ply of said hose overlying the exterior of said sleeve, said annular end flange of the hose inner ply having an outwardly diverging inner wall, inner and outer spirally wound layers of wires embedded in said outer ply of the hose and extending from end to end thereof with the end portions of 2. corresponding wire of each layer disposed in each of said axially extending openings on the connector sleeve, means to anchor said end portions of the wires in said openings, a coupling member receiving said sleeve and having an angularly disposed surface engaging interiorly against said diverging inner wall of the hose end flange to force the same outwardly against the surrounding coupling member and provide a fluid-tight seal.

3. In a hose structure, a connector sleeve having an annular end face and a plurality of axially extending radial openings in the external surface of the sleeve at equally spaced intervals circumferentially thereof, a hose including inner and outer plies connected at one sleeve with the inner ply of said hose extending through the sleeve and having an annular end flange portion overlying the annular end face of said sleeve and the outer ply of said hose overlying the exterior of said sleeve, said annular end flange of the hose having a groove in the end face thereof and having an angularly diverging annular inner wall, inner and outer spirally wound layers of wires embedded in said outer ply of the hose and extending from end to end thereof with the end portions of a corresponding wire of each layer disposed in each of said exially extending openings on the connector sleeve, means to anchor wires in said openings, a coupling member receiving said sleeve and having an annular recess therein receiving said hose end flange, said recess of the coupling having an angular inner wall correspondingly disposed with respect to the angular inner wall of the hose end flange and engaging interiorly against the flange outwardly against the surrounding coupling member and provide a fluid-tight seal, the groove in the hose flange end face facilitating outward displacement of said hose end flange.

4. In a hose structure, a connector sleeve having a plurality of axially extending radial openings in the external surface of the sleeve at equally spaced intervals circumferentially thereof, a hose connected at one end to said connector sleeve, inner and outer spirally wound layers of wires embedded in said hose and extending from end to end thereof with the end portions of a corresponding wire of each layer disposed in each of said axially extending openings on the connector sleeve, and means to anchor said end portions of the wires in said openings.

5. In a hose structure, a connector sleeve, an annular enlargement on said sleeve intermediate the ends thereof and having a plurality of axially extendin radial openings in said enlargement at equally spaced intervals circumferentially thereof, a hose connected at one end to said connector end to said connector sleeve, inner and outer spirally wound layers of wires embedded in said hose and extending from end to end thereof with the end portions of a corresponding wire of each layer disposed in each of said axially extending openings in the sleeve enlargement, means to anchor said end portions of the wires in said openings.

6. In a hose structure, a connector sleeve having an annular end face, a hose including inner and outer plies connected at one end to said connector sleeve with the inner ply of said hose extending through the sleeve and having an annular end flange portion overlying the annular end face of said sleeve and the outer ply of said hose overlying the exterior of said sleeve, a coupling member receiving said sleeve and having an angularly disposed surface engaging interiorly of the hose end flange to force the same outwardly against the surrounding coupling member and provide a fluid-tight seal.

7. In a hose structure, a connector sleeve having an annular end face, a hose including inner and outer plies connected at one end to said connector sleeve with the inner ply of said hose extending through the sleeve and having an annular end flange portion overlying the annular end face of said sleeve, said annular end flange having a groove in the end face thereof and having an angularly diverging inner wall, a coupling member receiving said sleeve and having an annular recess therein receiving said hose end flange, said annular recess of the coupling member having an angular inner wall correspondingly disposed with respect to the angular inner wall of the hose end flange and engaging interiorly against the same to displace said end flange outwardly against the surrounding coupling member and provide a fluidtight seal, the groove in the hose flange end face facilitating outward displacement of said hose and flange.

a coupling member ing an annular recess therein receiving said hose groove in the hose flange end face facilitatin outward displacement of said hose end flange.

JOHN A. MULLER. REFERENCES CITED The following references are of record in the flle of this patent:

UNITED STATES PATENTS Number Name Date 1,847,218 Lamb Mar. 1, 1932 2,371,363 Smith Mar. 13, 1945 

